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Technical Data Sheet
Webshop_Platzhalter_Chem_LS

Potassium hydrogen phthalate solution, 500 ml
200 mg CSB/l (0,170 g C8H5KO4/l)
Examples of effect: Damage metals and burn body tissues; may cause serious eye damage. Safety: Avoid contact; wear safety spectacles and gloves. In the event of contact with eyes and skin, rinse with water.
Warning
H290
i may be corrosive to metals
P234 P390 P406
i keep only in original packaging, absorb spillage to prevent material damage, store in a corrosion-resistant container with a resistant inner liner
Pack Qty.
Pack.
Density (D) 1,005 g/cm³
Boiling point (bp) ~100 °C
ADR 8 III
UN-Nr. 3264

For determination of COD; DIN 38409-41:1980, DEV H41; DIN 38409-44:1992, DEV H44

€80.55/Pack Qty. 

excl. VAT. | 500 ml per Pack Qty.

Art. No. 2055.2

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2055.1 250 ml plastic

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2055.2 500 ml plastic

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General information

Determination of chemical oxygen demand (COD)

COD (chemical oxygen demand) is a measure of all the oxidisable components in water under specific conditions. The water sample is mixed with sulphuric acid and heated together with a defined quantity of potassium dichromate, with silver sulphate added as the catalyst. Chloride must be removed beforehand or masked with mercury sulphate. The remaining potassium dichromate is measured by means of titration, using an ammonium iron(II) sulphate solution and ferroin as the indicator. The equivalent amount of oxygen can then be calculated from the amount of potassium dichromate that is used up.


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